Effect of Density and Flower Size on the Reproductive Success of Nothoscordum Graminum (Alliaceae)

Molina‐Montenegro, Marco A.; Cavieres, Lohengrin A.

doi:10.4067/s0717-66432006000100004

Cited by 10 publications

(9 citation statements)

References 23 publications

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“…Th e fact that fruiting success increases with the increasing availability of fl owers and that the eff ect is greater when fl oral density is low shows that the relationship is not linear. Montenegro & Cavieres (2006) also suggested that there is a nonlinear relationship between fl oral density and fruiting success, possibly due to intraspecifi c (interindividual) competition among pollinators in settings of high fl oral density (Feldman et al 2004). Although elevated fl oral densities lead to a higher number of pollinator visits, this increase is not necessarily proportional to the increase in the number of fl owers (Klinkhamer et al 1989).…”

Section: Discussionmentioning

confidence: 99%

“…1B). In addition, the high fruit set following the brief fl owering period might have occurred due to the high density of fl owering individuals, which formed clusters within the forest (Montenegro & Cavieres 2006) and attracted more pollinators. In general, plants located in areas with abundant fl oral resources are more frequently visited and have superior fruiting success (Feinsinger et al 1991;Th ompson 2001, Klinkhamer & van der Lugt 2004.…”

Section: Discussionmentioning

confidence: 99%

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Ecological factors affecting the fruiting success of a Tibouchina trichopoda (DC.) Baill. (Melastomataceae) flower

2013

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Ecological factors aff ecting the fruiting success of a Tibouchina trichopoda (DC.) Baill. (Melastomataceae) fl ower ABSTRACTTh e abundance and distribution of resources for pollinators modulate the reproduction of plants. Th is study attempted to determine whether and how the fruiting success of Tibouchina trichopoda fl owers varies due to plant size, number of fl owers produced, distance between individuals and cardinal orientation of the fl owers. From July 2009 to February 2010, we conducted monthly evaluations of 21 plants in an area of regenerating forest within the Atlantic Forest biome, located near the municipality of Antonina, in southern Brazil. Floral density was monitored weekly. During the study period, the species bloomed twice: once during the cool, dry season, showing an extended fl owering period with scattered fl owering individuals; and once during the hot, rainy season, showing a brief fl owering period with a high density of fl owering individuals. Plant size was not found to infl uence fruiting success. Th ere was greater production of fl owers and fruits during the brief fl owering period. Th e extent of the fl oral display positively aff ected the fruiting success of the fl owers, the eff ect being greater when the density of fl owers was low and tending to stabilize at higher densities. Th e northern-facing portions of tree crowns produced more fl owers and therefore had greater fruiting success than did the southern-facing portions. However, the proportion of fruits produced per fl ower was the same.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Ecological factors affecting the fruiting success of a Tibouchina trichopoda (DC.) Baill. (Melastomataceae) flower

2013

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“…In fruit trees, such as peach (P. persica), pomegranate (Punica granatum) and rabbiteye blueberry (Vaccinium ashei), fruit set was significantly higher from larger flowers than smaller ones (Scorza et al, 1991;Johnson et al, 2011;Wetzstein et al, 2013). In addition, pollinators generally minimize energy expenditure and tend to visit bloom where the distance between flowers is short (Molina- Montenegro and Cavieres, 2006). Therefore, flower densities influence the crop yield in most fruit species (Stover, 2000).…”

Section: Introductionmentioning

confidence: 97%

“…Pollinators tend to visit flowers with the traits (e.g., size, form and color) that imply maximum rewards (Klinkhamer and Van der Lugt, 2004). Flower size is generally considered the most important attribute for pollinators and flowers with large perianth usually attract more pollinators, partially because of the positive correlation between the petal size and nectar rewards (Cohen and Shmida, 1993;Molina-Montenegro and Cavieres, 2006). In fruit trees, such as peach (P. persica), pomegranate (Punica granatum) and rabbiteye blueberry (Vaccinium ashei), fruit set was significantly higher from larger flowers than smaller ones (Scorza et al, 1991;Johnson et al, 2011;Wetzstein et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Sweet cherry floral organ size varies with genotype and temperature

Zhang¹,

Ampatzidis²,

Whiting³

2015

Scientia Horticulturae

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“…Large floral organ display is associated with a higher capability to attract pollinators (Young and Stanton, 1990;Kudoh and Wigham, 1998;Thompson, 2001;Nattero et al, 2010). Flowers with large perianths often attract more pollinators, partly because of the higher nectar rewards, and the petal size is positive correlated with this behavior (Molina-Montenegro and Cavieres, 2006). Therefore, pollinators tend to visit larger flowers rather than the smaller ones both in the same and between different plant species.…”

Section: Introductionmentioning

confidence: 99%

Genetic analysis of floral organ size in broccoli × cabbage via a mixed inheritance model of a major gene plus polygene

Shu

Liu

et al. 2016

Genet. Mol. Res.

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ABSTRACT. Broccoli and cabbage are important vegetable crops that produce hybrid seeds after insect pollination; the size of floral organs is crucial for this process. To investigate the genetic characteristics of floral organ sizes (corolla width, petal length and width, and lengths of stamen, anther, style, and stigma) and to improve the flower size and breeding efficiency of broccoli, we used multi-generation analysis of a major gene plus polygene model. Six populations obtained from a broccoli inbred line 93219 (small floral organs) and cabbage inbred line 195 (large floral organs) were used for the analysis. Corolla and petal width and stamen and anther length were controlled by the additive-dominanceepistasis polygene model. The heritability of these traits in BC 1 , BC 2 , and F 2 generations was high (72.80-93.76%). Petal and stigma length were governed by the two major genes of additive-dominance-epistasis effects plus additive-dominance polygene model; the major gene heritability in the F 2 generation were 79.17 and 65.77%, respectively. Style length was controlled by one major gene of additive-dominance effects plus additive- dominance-epistasis polygene model; the major gene heritability in BC 1 , BC 2 , and F 2 were 40.60, 10.35, and 38.44%, respectively; the polygene heritability varied from 41.85 to 68.44%. Our results provide important genetic information for breeding, which could guide improvement of flowerrelated traits and lay the foundation for quantitative trait loci mapping of the flower-size traits in Brassica.

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Effect of Density and Flower Size on the Reproductive Success of Nothoscordum Graminum (Alliaceae)

Cited by 10 publications

References 23 publications

Ecological factors affecting the fruiting success of a Tibouchina trichopoda (DC.) Baill. (Melastomataceae) flower

Ecological factors affecting the fruiting success of a Tibouchina trichopoda (DC.) Baill. (Melastomataceae) flower

Sweet cherry floral organ size varies with genotype and temperature

Genetic analysis of floral organ size in broccoli × cabbage via a mixed inheritance model of a major gene plus polygene

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